Study of the Dependence Effectiveness of Low-potential Heat of the Ground and Atmospheric Air for Heating Buildings from Climatic parameters

The article represents the results of researches for division into districts of the territory of Russia and Europe by efficiency of using for the heat supply of buildings of low-potential thermal energy of ground and free air and their combination. While modeling of the heat regime of geothermal HPS in climatic conditions of different regions of the territory of Russia, the influence has been taken into account of the long-term extraction of geothermal heat energy on the ground heat regime as well as the influence of phase transitions of pore moisture in ground on the efficiency of operation of geothermal heat-pump heat-supply systems. While realization of the division into districts, the sinking of temperatures of ground massive was been taken into account which has been called by long-term extraction of the heat energy from the ground, and as calculation parameters of the heat energy from the ground, and as calculation parameters of ground massive temperatures, the ground temperatures were used which are waited for the 5-th year of operation of geothermal HPS

Study of the Dependence Effectiveness of Low-potential Heat of the Ground and Atmospheric Air for Heating Buildings from Climatic parameters

The article represents the results of researches for division into districts of the territory of Russia and Europe by efficiency of using for the heat supply of buildings of low-potential thermal energy of ground and free air and their combination. While modeling of the heat regime of geothermal HPS in climatic conditions of different regions of the territory of Russia, the influence has been taken into account of the long-term extraction of geothermal heat energy on the ground heat regime as well as the influence of phase transitions of pore moisture in ground on the efficiency of operation of geothermal heat-pump heat-supply systems. While realization of the division into districts, the sinking of temperatures of ground massive was been taken into account which has been called by long-term extraction of the heat energy from the ground, and as calculation parameters of the heat energy from the ground, and as calculation parameters of ground massive temperatures, the ground temperatures were used which are waited for the 5-th year of operation of geothermal HPS

Study of the Dependence Effectiveness of Low-potential Heat of the Ground and Atmospheric Air for Heating Buildings from Climatic parameters

The article represents the results of researches for division into districts of the territory of Russia and Europe by efficiency of using for the heat supply of buildings of low-potential thermal energy of ground and free air and their combination. While modeling of the heat regime of geothermal HPS in climatic conditions of different regions of the territory of Russia, the influence has been taken into account of the long-term extraction of geothermal heat energy on the ground heat regime as well as the influence of phase transitions of pore moisture in ground on the efficiency of operation of geothermal heat-pump heat-supply systems. While realization of the division into districts, the sinking of temperatures of ground massive was been taken into account which has been called by long-term extraction of the heat energy from the ground, and as calculation parameters of the heat energy from the ground, and as calculation parameters of ground massive temperatures, the ground temperatures were used which are waited for the 5-th year of operation of geothermal HPS

Study of Heat Engineering Homogeneity Fragments of Enclosing Structures in the Climatic Chamber

The article describes a method of experimental determination of the coefficient of heat engineering homogeneity of enclosing structures buildings used during thermal testing in a climate chamber. The method is based on obtaining a matrix of temperature distribution on the inner surface of a fragment of enclosing structure. The matrix is formed by collecting data from a thermovision controller and data received from the temperature sensors installed at selected points

Study of Heat Engineering Homogeneity Fragments of Enclosing Structures in the Climatic Chamber

The article describes a method of experimental determination of the coefficient of heat engineering homogeneity of enclosing structures buildings used during thermal testing in a climate chamber. The method is based on obtaining a matrix of temperature distribution on the inner surface of a fragment of enclosing structure. The matrix is formed by collecting data from a thermovision controller and data received from the temperature sensors installed at selected points

Study of Heat Engineering Homogeneity Fragments of Enclosing Structures in the Climatic Chamber

The article describes a method of experimental determination of the coefficient of heat engineering homogeneity of enclosing structures buildings used during thermal testing in a climate chamber. The method is based on obtaining a matrix of temperature distribution on the inner surface of a fragment of enclosing structure. The matrix is formed by collecting data from a thermovision controller and data received from the temperature sensors installed at selected points

Definition of the Heat Resistance of Three-layer Ferroconcrete Panel

This work describes the method of calculation of resistance referred to heat transfer of fencing in construction of an edifice with an example of a tree-layered ferroconcrete panel. In the limits of a final element program medium, a numerical modeling of stationary distributions of temperature fields and heat flows of panels of a type story of an apartment house have been conducted. On the basis of the results of numeral modeling the value of resistances to heat transfer and of the factors of termotechnical uniformity of panels are calculated

Definition of the Heat Resistance of Three-layer Ferroconcrete Panel

This work describes the method of calculation of resistance referred to heat transfer of fencing in construction of an edifice with an example of a tree-layered ferroconcrete panel. In the limits of a final element program medium, a numerical modeling of stationary distributions of temperature fields and heat flows of panels of a type story of an apartment house have been conducted. On the basis of the results of numeral modeling the value of resistances to heat transfer and of the factors of termotechnical uniformity of panels are calculated

Technical Solution for Protection of Heat Pump Evaporators Against Freezing the Moisture Condensed

This article is dedicated to the study of the processes of formation and freezing of condensate in heat exchangers using ambientair heat and is prepared according to the results of experimental investigations. The aim of this work has been set to elaboratean energy-independent technical solution for protection of heat-exchange equipment against freezing the moisture condensed on the heat-exchange surfaces while using the low-potential heat of ambient air in heat pump systems. The investigations have shown that at the temperatures of ambient air close to 0°C when using the «traditional» way of defrostation, which means the reverse mode of operation of heat pump, an intensive formation of ice is observed at the bottom part of evaporator (if not provided with tray heater). This effect is provoked by downward flow of thawed water and it’s freezing in the lower part of the heat-exchanger due to the fact that the tray and housing of heat pump have a temperature below zero. Thereafter, while the defrostation mode has been periodically used, the ice coat would be going to continue its growth, and by time significant area of evaporator could appear to be covered with ice. The results of the investigations presented in the article could be applied both to air-source heat pumps and to ventilation air heat recuperators

Technical Solution for Protection of Heat Pump Evaporators Against Freezing the Moisture Condensed

This article is dedicated to the study of the processes of formation and freezing of condensate in heat exchangers using ambientair heat and is prepared according to the results of experimental investigations. The aim of this work has been set to elaboratean energy-independent technical solution for protection of heat-exchange equipment against freezing the moisture condensed on the heat-exchange surfaces while using the low-potential heat of ambient air in heat pump systems. The investigations have shown that at the temperatures of ambient air close to 0°C when using the «traditional» way of defrostation, which means the reverse mode of operation of heat pump, an intensive formation of ice is observed at the bottom part of evaporator (if not provided with tray heater). This effect is provoked by downward flow of thawed water and it’s freezing in the lower part of the heat-exchanger due to the fact that the tray and housing of heat pump have a temperature below zero. Thereafter, while the defrostation mode has been periodically used, the ice coat would be going to continue its growth, and by time significant area of evaporator could appear to be covered with ice. The results of the investigations presented in the article could be applied both to air-source heat pumps and to ventilation air heat recuperators